Improvement in cloth-friezing machines



a. a. BISHOP.

filoth-Friezing Machine.

TH; GRAPHIC C0.PHOTO-LITH.39&4'I PARK PLACLN-Y- GEORGE G. BISHOP, OF NORWALK, CONNECTICUT, ASSIGNOR TO THE UNION MANUFACTURING COMPANY, OFSAME PLACE.

IMPROVEMENT IN CLOTH-FRIEZING MACHINES.

Specification forming part of Letters Patent No. 16!.585, dated April 6,1875; application filed March 15, 1875.

To all whom it may concern:

Be it known that I, GEORGE G. BISHOP, of Norwalk, Fair-field county,State of Connecticut, have invented an Improvement in Friezence whereverthey occur referring to similar parts.

Figure 1 is a front elevation of the machine, showing the improvedfriezer in combination therewith. Fig. 2 is a plan view of the machine.Fig. 3 is a face view of the friezer.

LetterA represents the frame of the machine. Across its front and backends are secured, in suitable bearings, cloth beams or rollers B and C.On the roller B a piece of cloth, D, is tightly wound. Its outer end isthen carried over a solid bcd-board, E, arranged transversely of themiddle of the machine, and thence secured, by tenter-hooks, to the faceof the roll C, so that, by any suitable gearing and pulley-belts, thecloth will be tightly and firmly stretched over the upper surface of thebed, and at the same time progressively carried forward from one roll tothe other, as required for the friezing operation. This operation iseffected by means of a vibrating platen, F, of about twelve to fifteeninches in width, and of sufficient length to extend across the width ofthe web of cloth, having firmly secured to its lower surface an elasticfriezer, G. This friezer is made of vulcanized india-rubber or othervulcanizable gum or substance possessing similar elastic properties. Itslower surface is formed by a series of diamond or other similarly-shapedcavities or compartments, separated by elastic walls or partitions. Thethickness of the walls are about one-sixteenth of an inch and aboutthreeeighths of an inch indepth, having their bisecting points solidlyjoined together, so as to form the lower surface of the friezer into aseries of independent countersunk compartments, which are about one andone-half inch long by about three-quarters of an inch wide, but may bevaried in shape and dimensions according to the material operated onwithout impairing its utility so long as the edges of the elastic wallsmay have full effect upon the cloth to produce a shaggy curledappearance of the nap in consequence of the vibratory motion given tothe friezer. To obtain this vibratory motion perforated lugs H areformed on or attached to the ends of the platen, and engage with cranksJ on the upper ends of two vertical rotating rods, K, secured insuitable hearings on each side of the frame of the machine, to which anysuitable propelling power is applied. Thus a rapid vibratory motion isgiven to the friezer upon the surface of the cloth while it is beingdrawn forward over the bed.

Having described my invention, I claim- The combination of the platenwith a vulcanized gum-elastic friezer having its surface divided intonumerous small angular cavities by means of elastic bisecting walls orpartitions, substantially as described, and for the purposes set forth.

GEORGE G. BISHOP. Witnesses:

' EZRA H. PARKER, ALFRED H. CAMP.

